Solve. Express any nonreal complex numbers with i notation.x4 - 2x2 - 8 = 0
A. x = ±
, ± 2i
B. x = ± 2, ± i
C. x = 2, i
D. x = -4, 2
Answer: B
Mathematics
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A. 192 mph B. 217 mph C. 197 mph D. 182 mph
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Use implicit differentiation to find dy/dx and d2y/dx2.xy - x + y = 2
A. 
= 
; 
= 
B. 
= - 
; 
= 
C. 
= 
; 
= 
D. 
= - 
; 
= 
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Graph the set of points whose polar coordinates satisfy the given equation or inequality.r ? 4
A. 
B. 
C. 
D. 
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Add. 16,914 2147 + 25,416
A. 45,577 B. 44,577 C. 44,477 D. 43,477
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